PLEASE HELP!!! ERROR trying to burn DVD+R with NERO Smart Start

I downloaded the following from afterdawn.com:

Decrypter
Shrinker
and NERO Smart Start (newest version I believe)

I decrypted I shrunk movie to my hard drive .....and now I want to burn.

I was Using Nero UNDER the CLASSIC Nero mode.

Error is..... my laptop is stating that I must insert a rewritable dvd.

I used DVD-r
I used DVD+r

Why would I have to use a DVD+RW??????

It doesn't make sense!!! Help!

I have READ everything about dvd burning, etc.... on this site. NOthing is working.